Rocket League 2D takes the core idea of the game it's named after — cars playing soccer — and flattens it into a fast, side-view arena you can pick up in seconds. There's no 3D physics engine to wrestle with, no camera to manage; it's pure momentum, boost, and timing as you rocket across the pitch and try to smash an oversized ball into your opponent's goal before they do the same to you.
Because everything happens on a single flat plane, matches read very cleanly — you can always see exactly where the ball, your car, and your opponent are, which makes for quick reactions and quicker comebacks. A goal can flip a match in a single boosted jump, so even a losing game rarely feels finished until the clock actually runs out.
It's the fastest way to get the addictive push-and-pull of car soccer without needing the hardware (or the download) that the full 3D game demands. If the flat arena leaves you wanting more sports-with-a-twist action, GBK Games also has Basket Random and Soccer Random, both built around the same short, chaotic match structure.